buff
US /bʌf/
UK /bʌf/

1.
a light yellowish-brown color
:
•
The walls were painted a soft buff.
•
She wore a dress in a lovely shade of buff.
2.
a fan or enthusiast of a particular subject or hobby
:
•
He's a real history buff.
•
My uncle is a movie buff and watches films every night.
1.
2.
to make stronger or more effective (especially in video games)
:
•
The new update will buff the warrior class, making them more powerful.
•
The coach tried to buff up his team's confidence before the big game.